赵新兵
纳米材料、半导体热电材料、锂离子电池及其电极材料
个性化签名
- 姓名:赵新兵
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
博士生导师,
- 职称:-
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学科领域:
材料科学基础学科
- 研究兴趣:纳米材料、半导体热电材料、锂离子电池及其电极材料
1982年7月浙江大学金属材料工程专业本科毕业,获工学学士学位。1985年7月浙江大学金属材料专业硕士研究生毕业,获工学硕士学位。1985年9月起在浙江大学材料系任教。1990年12月中德联合培养金属材料专业博士研究生毕业,获工学博士学位。1995年晋升教授职称,1996年起担任博士生指导教师。曾任浙江大学材料与化学工程学院副院长、材料系系主任,现任浙江大学工学部学术委员会委员、中国材料研究学会理事、中国稀土学会理事、稀土新材料专业委员会副主任、中国机械工程学会材料分会常务理事、教育部金属材料与冶金专业教育指导委员会委员、《材料科学与工程学报》主编。自1998年以来,主要从事纳米材料、半导体热电材料、锂离子电池及其电极材料研究,先后主持1项973计划课题、1项国家自然科学基金重点项目、1项863计划课题、6项国家自然科学基金面上项目和2项国际合作项目等科研项目。历年来发表学术论文250余篇(其中SCI收录论文180余篇)。获授权国家发明专利15项,获国际热电学会议最佳科学论文奖1次,获浙江省科学技术奖一等奖1次。
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6
赵新兵, H. Y. Chen, X. B. Zhao, a) and Y. F. Lu, E. Mueller and A. Mrotzek
JOURNAL OF APPLIED PHYSICS VOLUME 94, NUMBER 10 15 NOVEMBER 2003,-0001,():
-1年11月30日
Iron disilicide based thermoelectric materials Fe0.92Mn0.08Six (1.9≤x≤2.5) were prepared by rapid solidification (melt spinning) and hot uniaxial pressing at 1248K with 50MPa for 30min, followed by annealing at 1073K for 20h. X-ray diffraction and scanning electron microscopy showed excess silicon phase for samples with x≥2.1, and both the configurations and the amounts of secondary silicon particles varied with an increase in x. Hall measurements carried out at room temperature showed that the carrier concentrations for Fe0.92Mn0.08Six (1.9≤x≤2.5) were between 2.6×10 18 and 5.6×10 18cm-3. The Seebeck coefficient, electrical conductivity and thermal conductivity were measured from room temperature to 973K. It was found that a little excess silicon in the sample, x=2.1, enhanced the Seebeck coefficient weakly, but was effective for decreasing the thermal conductivity. A maximum figure of merit, ZT=0.17, was obtained for Fe0.92Mn0.08Si2.0 at 973K.
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赵新兵, T. J. ZHU†‡, X. B. Zhao‡ and L. L܆§‖
PHILOSOPHICAL MAGAZINE, 1 September 2003 Vol. 83, No.25, 2865-2873,-0001,():
-1年11月30日
FeSi2-and Fe2Si5-based thermoelectric alloys have been fabricated by melt spinning and levitation melting. It was found that the levitation-melted FeSi2-based alloy must be annealed at 800℃ for 10h to complete transformation of the β phase, while an anneal for only 6h was needed for the melt-spun alloy. On the other hand, annealing the levitation-melted Fe2Si5-based alloy for 4h was enough to complete β-phase formation, whereas 14h was required for the melt-spun alloy. Annealing temperature dependence of the Seebeck coefficient showed that the maximum rate of transformation to β phase occurred at about 800℃ for all samples. Application of the Johnson-Mehl-Avrami equation revealed that grain-boundary nucleation was predominant in the levitation-melted FeSi2-based alloy (time exponent n=1.1), while the zero nucleation mechanism was operative in the melt-spun alloy (n=3.1). For the eutectoid reactions in the Fe2Si5-based alloys, several kinds of nucleation site were active. However, nuclei formed at grain edges were dominant in the melt-spun alloy since n=1.6.
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【期刊论文】Ex-situ XRD studies of CoSb3 compound as the anode material for lithium ion batteries
赵新兵, Jian Xie, Xinbing Zhao*, Gaoshao Cao, Yaodong Zhong, Mingjian Zhao
Journal of Electroanalytical Chemistry 542(2003)1-6,-0001,():
-1年11月30日
The skutterudite-type CoSb3 alloy was prepared using levitation melting. The electrochemical properties of CoSb3 were investigated using Li ion model cells, Li/LiPF6(EC/DMC)/CoSb3. It was found that the first reversible capacity is about 420mA h g-1. Ex-situ XRD (X-ray diffraction) experiments have been used to characterize the electrochemical lithiation and de-lithiation mechanism of CoSb3 alloy. The results revealed that when CoSb3 is intercalated by Li ions, it decomposes into Co and Sb first, followed by the formation of the Li3Sb phase, which is dispersed in the Co matrix. When Li ions are removed from Li3Sb, Co and Sb atoms cannot reconstruct CoSb3, while the Li-Sb alloying and de-alloying processes are reversible.
Lithium ion batteries, CoSb3 alloy, Levitation melting, Ex-situ XRD
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赵新兵, X.B. Zhao*, G.S. Cao, C.P. Lv, L.J. Zhang, S.H. Hu, T.J. Zhu, B.C. Zhou
Journal of Alloys and Compounds 315(2001)265-269,-0001,():
-1年11月30日
Some antimony or tellurium based thermoelectric alloys have been prepared and studied as new candidate anode materials for lithium-ion batteries. It was found that some thermoelectric antimonides yield a volume capacity for reversible lithium storage more than twice that of state of the art carbon based materials. Ex-situ XRD analyses show that the semimetals such as antimony, bismuth and tellurium in the semiconducting thermoelectric alloys are the active elements for the lithium adsorption. However, inactive elements are also necessary for an alloy electrode to ensure the electrochemical capacity retention during cycling.
Electrode materials, Electrochemical reactions, Thermoelectric, Ionic conduction
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【期刊论文】A study of Zn4Sb3 as a negative electrode for secondary lithium cells
赵新兵, X.B. Zhao*, G.S. Cao
Electrochimica Acta 46(2001)891-896,-0001,():
-1年11月30日
Antimony zinc alloy, Zn4Sb3, was studied as a potential material for negative electrodes of lithium-ion batteries. It was found that the reversible capacity of ball-milled Zn4Sb3 in the first cycle reached 507mA h g-1 and increased up to 580mA h g-1 when the alloy was ball-milled with about 11.8wt.% graphite additives. Ex-situ XRD analyses of the pure Zn4Sb3 electrodes during cycling showed that several lithium-containing compounds such as LiZnSb, Li3Sb and LiZn have been formed successively during the insertion of lithium into Zn4Sb3. It was found that the ball-milled composite, Zn4Sb3/C7, possesses high initial reversible capacity, small voltage hysteresis and good capacity retention, which make this material an interesting potential electrode for lithium-ion batteries.
Lithium-ion battery, Zn4Sb3, Li3Sb
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【期刊论文】Transport properties of rapid solidified Fe-Si-Mn-Cu thermoelectric alloys
赵新兵, X.B. Zhao*, T.J. Zhu, S.H. Hu, B.C. Zhou, Z.T. Wu
Journal of Alloys and Compounds 306(2000)303-306,-0001,():
-1年11月30日
Manganese and cooper doped FeSi2 and Fe2Si5 alloys were prepared by a rapid solidification technique. X-ray diffraction analysis showed that the as-solidified FeSi2 alloy is composed of α-Fe2Si5 and ε-FeSi phases, while only the α-Fe2Si5 phase exists in the as-solidified Fe2Si5 alloy. The semiconducting phase β-FeSi2 has not been found in the as-solidified structures but was obtained after annealing for 21h at 800℃ for both alloys. It was found that the excess silicon over the stoichiometric silicon content of the β-FeSi2 phase could improve the transport properties of the materials.
Transition metal compounds, Electronic transport, Thermoelectric properties, Liquid quenching
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